This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX120, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI160 Standard Cylinder SI160AX120
The AirTAC SI160 Standard Cylinder SI160AX120 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 120mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX120, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke120 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX120
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI160 Standard Cylinder SI160AX120
The AirTAC SI160AX120 is a discontinued double-acting ISO 15552 profile cylinder with a 160mm bore and 120mm stroke. Delivering 10053N push force at 0.5MPa via a G3/4 port, it is replaced by the SAI160AX120. This direct successor matches the exact interface, bore, stroke, force, and mounting.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. This SKU has an SUS420J2 stainless rod (option A) and no magnet, so it cannot take a sensor. For higher heat, Viton H seals raise the temperature limit to 150C.
Airtac SI160 Standard Cylinder SI160AX120 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX120 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX120 |
| Bore size | Ø160 mm |
| Stroke | 120 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI160AX120 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAI160AX120 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI160 Standard Cylinder SI160AX120
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×120 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI160 Standard Cylinder SI160AX120 Is Used
Heavy Press Forming
Provides 10053N of thrust at 0.5MPa for securely pressing heavy gauge metal components and structural assemblies.
Injection Molding
Handles the substantial clamping forces required to secure large industrial molds during high-volume thermoplastic injection.
Replacing the Airtac SI160 Standard Cylinder SI160AX120 with the SAI160AX120
To replace the SI160AX120, order the SAI160AX120, confirming the ISO 15552 mounting interface, 120mm stroke, and G3/4 port. Keep the existing mounting accessory. This SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B switches. If sizing up or down, note the 125mm bore offers 6136N push at 0.5MPa, while the 200mm bore gives 15708N. For load holding on air loss, the cushion only decelerates; use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX120
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI160 Standard Cylinder SI160AX120 FAQ
Yes, the SI160AX120 is discontinued. The direct replacement is the SAI160AX120. It is a true ISO 15552 profile cylinder that matches the original bore, stroke, 10053N force, G3/4 port, and mounting interface, fitting existing fixtures perfectly.
This double-acting cylinder features a G3/4 air port. It delivers 10053N push and 9425N pull at 0.5MPa, 14074N push at 0.7MPa, and a theoretical maximum force of 2050kgf at 1.0MPa. The rod is 40mm with an M36x2 thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX120
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX120 replacement — usually within 7-8 hours.